Amphoracrinus sp.
Section of the stem of what would have been a truly gigantic Crinoid. Shows triple branching towards one end. The elliptical depression on one side is some sort of pathology or reaction to a parasite. From a very famous old locality. Collected early 1980's.
Carboniferous, Visean.
Salthill Quarry, Clitheroe, Lancashire.
Specimen : 4.5 x 6.5 cm..
